ICD-10-CM > S00-T88 > S80-S89 > S83 > S83.1 > S83.13 > S83.132 S83.132 Medial subluxation of proximal end of tibia, left knee Non-Billable/Non-Specific Codes S83.132A..., initial encounterS83.132D..., subsequent encounterS83.132S..., sequela